<!DOCTYPE html>
<html lang="zh-CN">

<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>盒子模型之外边距</title>
	<style>
		div {
			width: 200px;
			height: 200px;
			background-color: pink;
		}

		.one {
			margin-bottom: 20px;
		}

		/* .two {
			margin-top: 20px;

		} */
		/* margin的复合属性 */
		/* .two {
			margin: 20px 50px; */
	</style>
</head>

<body>
	<div class="one">1</div>
	<div class="two">2</div>
</body>

</html>